$data.Entity.extend('Evaluation', {
	id: { type: 'int', key: true, required: true },	
	description: { type: 'string',required: true },
	tranche_inf: { type: 'int',required: true },
	tranche_sup: { type: 'int',required: true }
});

function getValueEvaluations(BD,champs,valeur){
	return BD.Evaluations.filter('it.'+champs+' == '+valeur).toArray();
}